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Battjes, J.A. (author), Labeur, R.J. (author)
lecture notes 2014
document
Janssen, T.T. (author), Herbers, T.H.C. (author), Battjes, J.A. (author)
We present a stochastic model for the evolution of random ocean surface waves in coastal waters with complex seafloor topography. First, we derive a deterministic coupled-mode model based on a forward scattering approximation of the nonlinear mild slope equation; this model describes the evolution of random, directionally spread waves over fully...
journal article 2008
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Mulligan, R.P. (author), Bowen, A.J. (author), Hay, A.E. (author), Van der Westhuysen, A.J. (author), Battjes, J.A. (author)
Evolution of the wave field in a coastal bay is investigated, by comparison between field observations and numerical simulations using a spectral wave model (Simulating WAves Nearshore (SWAN)). The simulations were conducted for the passage of an extratropical storm, during which surface elevation spectra were bimodal owing to local wind-sea...
journal article 2008
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Van Dongeren, A. (author), Battjes, J.A. (author), Janssen, T. (author), Van Noorloos, J. (author), Steenhauer, K. (author), Steenbergen, G. (author), Reniers, A. (author)
The growth rate, shoreline reflection, and dissipation of low?frequency waves are investigated using data obtained from physical experiments in the Delft University of Technology research flume and by parameter variation using the numerical model Delft3D?SurfBeat. The growth rate of the shoaling incoming long wave varies with depth with an...
journal article 2007
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Battjes, J.A. (author)
Farewell lecture
public lecture 2004
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Battjes, J.A. (author)
lecture notes 2002
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Petit, H.A.H. (author), Battjes, J.A. (author)
This report refers to the work done at the Fluid Mechanics Section within the framework of the Netherlands Centre for Coastal Research (NCK). As shown by Reniers et al. (2000) there are strong indications that wave-group related phenomena are important in the development of rip channels. It is to be expected that edge waves caused by wave-group...
report 2001
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Petit, H.A.H. (author), Klopman, G. (author), Battjes, J.A. (author)
This progress report refers to work done at the Fluid IVlechanics Section within the framework of the Netherlands Centre for Coastal Research (NCK). In the coastal zone the long wave motion may contribute significantly to the morpho-dynamics, due to its strong correlation with the short wave motion by surf beat. Also wave-group induced edge...
report 2001
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Klopman, G. (author), Petit, H.A.H. (author), Battjes, J.A. (author)
The project concerns the influence of long waves on coastal morphology. The modelling of the combined motion of the long waves and short waves in the horizontal plane is done by phase-averaging over the short wave motion and using intra-wave modelling for the long waves, see e.g. Roelvink (1993). The evolution of the long-wave motion and the...
report 2000
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Battjes, J.A. (author)
Basisvergelijking lange golven, elementaire golfvergelijkingen, karakteristiekenmethoden, harmonische golven. Doordringing van getijden in rivieren.
lecture notes 2000
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Battjes, J.A. (author)
In dit derdejaarsvak "Vloeistofmechanica" wordt voortgebouwd op het gelijknamige tweedejaarsvak (b70), waarvan de stof bekend wordt verondersteld. In hoofdstuk 2 wordt verder ingegaan op de kinematica en de dynamica van stromingen, vooral die van een ideale vloeistof. De behandeling is gericht op de berekening van het gehele snelheidsveld en...
lecture notes 1992
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Battjes, J.A. (author), Beji, S. (author)
Nonlinear aspects of breaking and non-breaking waves propagating over a submerged trapezoidal bar have been investigated by laboratory experiments, with special emphasis on the generation of high-frequency energy. Data collected from the measurements are used for computing spectral and bispectral estimates in order to assess the contribution of...
conference paper 1991
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Battjes, J.A. (author), Sobey, R.J. (author), Stive, M.J.F. (author)
Shelf circulation is driven primarily by wind- and tide-induced forces. It is laterally only weakly constrained so that the geostrophic (Coriolis) acceleration is manifest in the response. Nearshore circulation on the other hand is dominated by wave-induced forces associated with shallow-water. wave breaking and is confined to a relatively...
conference paper 1990
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Battjes, J.A. (author)
College vloeistofmechanica, balansvergelijkingen, impulsbalans, stroombuis, stroming in open waterlopen, stroming rond een star lichaam, pijpstroming.
lecture notes 1990
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Battjes, J.A. (author)
lecture notes 1988
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Stive, M.J.F. (author), Battjes, J.A. (author)
The radiation stress concept is basic to the description of currents induced by waves. Gradients of the excess momentum flux due to the presence of waves (or radiation stress) appear as volume forces in the time- and depth-integrated horizontal momentum balance equations. Combined with the continuity equation these three equations yield the mean...
conference paper 1986
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Battjes, J.A. (author)
Basisvergelijkingen, lineare theorie, dispersierelatie, niet-lineaire theorieen, terugkaatsing, breking en oploop tegen een helling, diffractie.
lecture notes 1986
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Battjes, J.A. (author)
Collegediktaat, stochastische variabelen, stochastische processen, spectraalanalyse, golfverwachtingsmodellen, golfklimaat.
lecture notes 1984
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Battjes, J.A. (author), Janssen, J.P.F.M. (author)
A description is given of a model developed for the prediction of the dissipation of energy in random waves breaking on a beach. The dissipation rate per breaking wave is estimated from that in a bore of corresponding height, while the probability of occurrence of breaking waves is estimated on the basis of a wave height distribution with an...
conference paper 1978
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Battjes, J.A. (author)
Background material for a special lecture on probabilistic aspects of ocean waves for a seminar in Trondheim. It describes long term statistics and short term statistics. Statistical distributions of waves, directional spectra and frequency spectra. Sea state parameters, response peaks, encounter probability.
report 1977
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